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A fluid transfer and mixing device for use in the aseptic intermixing of a powder component with a fluid component. The device is of a simple, compact construction that includes a first adapter that can be easily connected to a container containing the powder component and a second adapter that can

A fluid transfer and mixing device for use in the aseptic intermixing of a powder component with a fluid component. The device is of a simple, compact construction that includes a first adapter that can be easily connected to a container containing the powder component and a second adapter that can be removably interconnected with the first adapter and can also be readily connected to a container containing a fluid such as a diluent so as to permit aseptic intermixing of the diluent with the powder. In use a conventional needleless syringe can be easily connected to the first adapter so that the mixture of the powder and diluent can be aseptically aspirated from the first container for subsequent delivery to the patient.

대표청구항 ▼

A fluid transfer and mixing device for use in the aseptic intermixing of a powder component with a fluid component. The device is of a simple, compact construction that includes a first adapter that can be easily connected to a container containing the powder component and a second adapter that can

A fluid transfer and mixing device for use in the aseptic intermixing of a powder component with a fluid component. The device is of a simple, compact construction that includes a first adapter that can be easily connected to a container containing the powder component and a second adapter that can be removably interconnected with the first adapter and can also be readily connected to a container containing a fluid such as a diluent so as to permit aseptic intermixing of the diluent with the powder. In use a conventional needleless syringe can be easily connected to the first adapter so that the mixture of the powder and diluent can be aseptically aspirated from the first container for subsequent delivery to the patient. second brake is connected to enable control by a fail-safe valve. 6. The hydraulic control system of claim 5 wherein the fail-safe valve includes lines on one side for supplying hydraulic pressure supplied from a second pressure control valve to the second brake, and lines on another side for exhausting the hydraulic pressure supplied to the second brake such that the fail-safe valve may be controlled by a first brake, second and fourth clutch pressure, and D range pressure that is supplied to an opposing side. 7. The hydraulic control system of claim 5 wherein the fail-safe valve receives pressure from a second pressure control valve, and is controlled by control pressure of the second solenoid valve and output pressure of the second pressure control valve supplied to an opposite side. 8. The hydraulic control system of claim 1 wherein operational pressure is exhausted by a fail-safe valve such that the second brake does not operate simultaneously with the first brake. 9. The hydraulic control system of claim 1 wherein the switch valve receives hydraulic pressure from a first pressure control valve, the first pressure control valve including lines on one side for supplying D range pressure supplied from a manual valve and lines on another side for exhausting hydraulic pressure supplied to the switch valve, and which is structured to enable control by control pressure of the first solenoid valve and output pressure of the first pressure control valve, which is supplied to an opposing side. 10. The hydraulic control system of claim 1 wherein the switch valve includes lines on one side for supplying hydraulic pressure from a first pressure control valve to the second clutch and for exhausting hydraulic pressure supplied to the first brake, and includes lines on another side for supplying hydraulic pressure from the first pressure control valve to the first brake and for exhausting hydraulic pressure supplied to the second clutch, the switch valve being controlled by an elastic member provided on one side therein and L range pressure supplied to a side opposite the elastic member.